Worst phones ever. In a year or half your motherboard will be damaged and if you are not under warranty period it will cost you 5000 rupess. And when it comes after repair you will definitely have low battery backup reduces camera quality and degraded software problem. We 5 friends together brought the same and all of us are going through the same problem. And it really costs too much to get sony phones repaired ie not less than 7000.

I'm using C4 for last 20 months,,, so far no pbm arose. but in last two days, an error occurred,,, "network not available". no sim cards detected in this,,, but sometimes it detected fortunately. what may be the problem? suggest me, whether it maybe of sim pbm or device pbm

Hassa , 25 Jan 2017Yes correact. Sony service very bad. Realy cheating Show the processor.......its very low, than it cause hang.....I m use Xperia z2.......it work very smoothly and faster,,,,Android main thing is processor

battery life is bad. marshmallow update may freez the device. first device had problems in camera and signal strength, then freezing. i got device exchanged by warranty after freezing. new device got after claiming warranty is ok with lollipop. still not a single day with battery.

Satyr79x, 21 Nov 2016God, why are so many people complaining? I just bought this last week and has been working gre... moreAlso loved the phone during the initial months...until it broke like the rest. Our experiences are not unique, this phone is destined to break a few months down the line. Wait for your turn.

My first and last Sony phone. POS died after 10 months. The phone reboots in a loop whenever I connect to a charger. The battery drains from 100% to 0% in a matter of minutes. Seller won't honour the warranty but they say its battery related but reading other users with same problems after battery replacement made no difference. It's hardware/software related.

Do NOT buy this phone. Great for a couple of months and it becomes a lemon. Never buying another Sony, worst phone ever owned.

worst phone Battery malfunctioned after 9 months. Would charge to 100%, but the discharge very quickly to say 90% and switch off. Restart would show 100%, but real state would be 90% or less. This would continue many times until battery fully discharged.

Rafiq, 05 Jan 2017I am using sony Xperia C4 dual from last 14 months its awesome but last few days i face a prob... moreI am also facing same problem then i visited Sony authorised service centre they says mother board is damaged and replacement required Rs 11000. Therefore my opinion don't by Sony phone